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Which element is the reference element is chemistry?
Carbon is the reference element for the definition of the mole. In electrochemistry, the reference element/electrode is the Hydrogen electrode and all electrode potentials are against the hydrogen standard.
How does a mole of atoms of one element compare to a mole of another element?
A mole of atoms of any element contains the same number of atoms, which is Avogadro's number (6.022 x 10^23). Therefore, a mole of atoms of one element is equivalent in quantity to a mole of atoms of another element. The only difference lies in the atomic weight of the elements.
What is the mass of one mole of an element that has an atomic mass of 6.94?
This is the third element Lithium: 6.94 g is the mass of 1 mole Li. The mass in grams of one mole of any element is exactly its atomic mass (in a.m.u.)
What element on the periodic table is a mole based off?
A mole is Avagadro's number (6.0221415 × 10^23) atoms of any particular element. Therefore a mole of hydrogen contains 6.0221415 x 10^23 atoms of hydrogen.
What is the purpose of defining the standard enthalpies of formation?
The standard enthalpy of formation is a measure of the energy released or consumed when one mole of a substance is created under standard conditions from its pure elements. A triangle is a change in enthalpy. A degree signifies that it's a standard enthalpy change. A f is a reaction from a substance that's formed from its elements.
Which element is the reference element is chemistry?
Carbon is the reference element for the definition of the mole. In electrochemistry, the reference element/electrode is the Hydrogen electrode and all electrode potentials are against the hydrogen standard.
What is the atomic weight in grams per mole of the element?
The atomic weight in grams per mole of an element is the average mass of one mole of atoms of that element, measured in grams.
The molar mass of an element is the mass of one?
The molar mass of an element is the mass of one mole of atoms of that element, measured in grams per mole. It is calculated by summing the atomic masses of the atoms in a chemical formula.
How does a mole of atoms of one element compare to a mole of another element?
A mole of atoms of any element contains the same number of atoms, which is Avogadro's number (6.022 x 10^23). Therefore, a mole of atoms of one element is equivalent in quantity to a mole of atoms of another element. The only difference lies in the atomic weight of the elements.
What elements other than carbon have been used to define a mole?
Any element can me measured in molar quantities.One mole of any element has 6.02 x 10 23 atoms of that element.Hydrogen is the simplest element to use.
If 32 grams of an element was equal to 1 mole of the element what is that element?
There are 32 grams of sulfur in a mole of that element. There are also 32 grams of oxygen in one mole of oxygen as it is found in its natural state (O2).
Is C2H2 plus H2 equal C2H4 spontenous written?
The standard free energy of formation of C2H2 is +209.20 kJ/mole, while that of C2H4 is +68.15 kJ/mole (and H2 zero since it is an element in its standard state). thus, at standard temperature and pressure (25 C, 1 Bar pressure) the reaction C2H2 + H2 -> C2H4 has a standard free energy change of -141 kJ/mole and thus "spontaneous" in that equilibrium constant >> 1.
What is the mass of one mole of an element that has an atomic mass of 6.94?
This is the third element Lithium: 6.94 g is the mass of 1 mole Li. The mass in grams of one mole of any element is exactly its atomic mass (in a.m.u.)
What is the relationship between the atomic mass of an element and a mole of that elements atoms?
The mole is the atomic weight expressed in grams.
How do you calculate molecules to moles?
Multiply the number of molecules by the number of molecules per mole for that particular element or molecule (sum of the molecules/mole of each element in the molecule). The number of molecules per mole for any element can be found on charts and on the periodic table.
The number of atoms in a mole of an element depends on what the element is. true or false?
True. The number of atoms in a mole of an element is determined by Avogadro's number, which is a constant (6.022 x 10^23) regardless of the element being considered. Each element's molar mass in grams is equal to one mole of that element's atoms.
What is the atomic mass of the element in grams per mole (g/mol)?
The atomic mass of an element is the average mass of one atom of that element, measured in atomic mass units (amu). This value is also equivalent to the mass of one mole of atoms of that element, expressed in grams per mole (g/mol).
